walk vs travel

walk and travel both are nouns.

Word	Noun	Adjective	Verb	Adverb
walk	Yes	No	Yes	No
travel	Yes	No	Yes	No

As nouns, travel is a hypernym of walk; that is, travel is a word with a broader meaning than walk:

Other hypernyms of walk include locomotion.

As nouns, travel is a hypernym of walk; that is, travel is a word with a broader meaning than walk:

Other hypernyms of walk include traveling, travelling.

As verbs, travel is a hypernym of walk; that is, travel is a word with a broader meaning than walk:

Other hypernyms of walk include go, locomote, move.

As verbs, travel is a hypernym of walk; that is, travel is a word with a broader meaning than walk:

Other hypernyms of walk include go, locomote, move.

walk (noun)	travel (noun)
the act of traveling by foot	the act of going from one place to another
(baseball) an advance to first base by a batter who receives four balls	self-propelled movement
a slow gait of a horse in which two feet are always on the ground	a movement through space that changes the location of something
the act of walking somewhere
careers in general
a path set aside for walking
manner of walking

walk (verb)	travel (verb)
obtain a base on balls	change location; move, travel, or proceed, also metaphorically
give a base on balls to	make a trip for pleasure
use one's feet to advance; advance by steps	travel upon or across
accompany or escort	undergo transportation as in a vehicle
walk at a pace	undertake a journey or trip
traverse or cover by walking	travel from place to place, as for the purpose of finding work, preaching, or acting as a judge
take a walk; go for a walk; walk for pleasure
make walk
live or behave in a specified manner
be or act in association with